Record the error
Write down the exact report, time and what you did.
Background knowledge & limits
03 / Orientation in Windows
🧭 Where can I find something in Windows?
The most important places in Windows – simply explained where you can find them.
📊
Task Manager
Shows which programs are running and how heavily the CPU, RAM and hard drive are used.
Keyboard: Ctrl + Shift + Esc
🔧
Device Manager
Shows all connected devices and their drivers. Here you can see whether a device has a problem.
Right click on Start → Device Manager
⚙️
Settings
Here you set almost everything: network, display, data protection, updates, apps and more.
Keyboard: Windows key + i
🎛️
Control Panel
The classic administration. You can only find many old settings here.
Type Start → “Control Panel”.
📅
Event Viewer
Logs everything that happens in the system. Helps with troubleshooting.
Start → type “Event Viewer”.
⏮️
Restore point
A "snapshot" of your system. This allows you to undo changes.
Start → "Create restore point"
🗑️
Free up memory
Remove temporary files and old updates to make space.
Settings → System → Storage
🛡️
Windows Security
The built-in virus protection and firewall. Here you can see whether your PC is protected.
Start → “Windows Security”
🔄
Windows Update
Here you can see whether updates are pending or have failed.
Settings → Windows Update
🚪
Safe Mode
Starts Windows with minimal drivers. Helps with problems after installations.
Hold down the shift key + restart
🔌
Power options
Controls when the PC goes into standby or shuts down.
Control Panel → Power Options
🌐
Network Center
Shows your connection and helps with network problems.
Control Panel → Network and Internet
08 / This is how you do it
🧭 Find the solution in 8 steps
An error code is an indication - not the cause. This order prevents unnecessary changes.
🔎 Clarify scope
Just one PC or several? Local or network?
📅 Check changes
New drivers, updates or devices recently?
🎯 Change just one thing
Not everything at once - otherwise you won't know what helped.
📓 Note the result
What was changed? What was the result?
🔄 Restart
Many problems disappear with a simple restart.
💾 Back up data
Always make a backup before making major changes!
👨🔧 Get help
If nothing works: it's better to ask a professional.
💚 Basic rule: If you are unsure what a step does –
skip it or ask someone. Better one step less than an irreversible
change.
09 / Glossary
📖 What do these terms mean?
Here you will find the most important technical terms – simply explained.
- 💠 Blue Screen (BSOD)
- A blue screen with white text. Windows shows it when something serious has happened. Don't panic - a restart usually helps.
- 🧩 Driver
- Small programs that tell Windows how a device works. Outdated or faulty drivers are common causes of problems.
- 🔧 DISM
- A Windows tool that can repair corrupted system files. Takes a few minutes.
- 🔍 SFC
- System File Checker – checks important Windows files and repairs them automatically.
- 💾 Minidump
- A small file that is created when a blue screen occurs. It contains information about error analysis.
- 📅 Event Viewer
- Windows records everything that happens here. Helps with troubleshooting.
- 🚪 WinRE
- Windows Recovery Environment - a separate boot system with repair tools.
- 🔒 BitLocker
- Encrypts your hard drive. You need a recovery key for repairs.
- 🎛️ UEFI/BIOS
- The basic software of your motherboard. Settings here affect how Windows starts.
- 📊 SMART
- Hard drive monitoring function. Can warn of a failure.
- 🌐 DNS
- Translates Internet addresses (e.g. google.de) into technical addresses. DNS problems result in “page unreachable”.
- 🔌 DHCP
- Automatically distributes IP addresses on the network. If DHCP doesn't work, your PC doesn't have a network address.
- 🔢 KB number
- Unique number for Windows updates (e.g. KB5034441). Is noted in case of update errors.
- 📊 Task Manager
- Shows all running programs and how busy your PC is (Ctrl+Shift+Esc).
- 🔧 Device Manager
- Shows all connected devices. Here you can see whether a device has a problem.
- ⏮️ Restore point
- A snapshot of your system settings. This allows you to undo changes.
- 💼 RAM / memory
- Your PC's "short-term memory". Too little RAM makes the PC slow.
- 💾 SSD/HDD
- storage media. SSDs are fast, HDDs (mechanical hard drives) are slower, but cheaper.
10 / Frequently asked questions
❓ Frequently asked questions
Answers to the most important questions about using this site.
🤔 Can the site automatically repair my PC?
No. This website cannot access your PC directly. It only shows you instructions that you can implement yourself.
🛡️ Are these instructions safe?
Not every step is risk-free. Diagnostic commands can expose data, repairs can alter the system, and reboots can cause unsaved work to be lost. Read the clues completely; In the event of drive damage, important unsecured data or uncertainty, seek specialist help first.
💾 What to do if your hard drive is damaged?
In the event of unusual noises or recurring reading errors: stop use and have your data recovered professionally. No defragmentation or repair scans. Only back up important data to another drive if no physical damage is suspected.
🏢 Is this site from Microsoft?
No. fixdeinenpc.de is an independent project. Microsoft names are used for descriptive purposes only.
🚫 Why not install “PC boosters”?
So-called PC boosters often cause more problems than they solve. Windows comes with all the necessary tools itself.
🔧 Where can I find the right driver?
Always only from the official website of the PC manufacturer (Dell, HP, Lenovo etc.) or device manufacturer. Windows Update usually delivers compatible drivers.
⏮️ What is a restore point?
A "snapshot" of your system at a specific point in time. Create one before major changes: Start → "Create restore point".
🌐 Can I use the site offline?
Unpack the complete website package and open the index.html in the browser. The css, js and assets folders must also be retained. Search and instructions then also work without a server. A page visited online is not automatically available offline after it is closed. External help links and some Windows diagnoses require Internet.
🏢 What is a “managed workstation”?
A PC that is controlled remotely by an IT department. Changes should always be discussed with IT.
🔒 How secure is the entry in the search field?
The search runs completely locally in your browser. No data is sent to a server. Nevertheless: Do not enter passwords or sensitive data.
💻 Windows 10 or 11 – does it matter?
Most instructions work for both versions. Minor differences in menu paths are mentioned in the steps.
🖨️ Can I print instructions?
Yes. Simply use your browser's print function (Ctrl+P). The site is optimized for printing.
11 / About us
💡 What is fixdeinenpc.de?
A free, independent help tool for all Windows users - without advertising or registration.
🎯 Our idea
PC problems can be unsettling. Unverified repair tips and additional system tools do not always help. fixdeinenpc.de offers clear, structured help – even without prior knowledge.
We do not replace professional IT support, but we do provide a clear initial framework of orientation.
What is important to us:
- 💚 data first – always back up before changing anything
- 🔍 Transparency – we explain what a command does
- 🚫 Don't worry – Error codes are clues, not disasters
- 🛡️ Trustworthy – no advertising, no “boosters”
- 👵 Easy – explains that even beginners can follow
📊 In numbers
152Error codes
11Categories
18+Diagnostic commands
16Keyboard shortcuts
12Windows settings guides
18Step-by-step guides
🚫 What fixdeinenpc.de is NOT
- ❌ No automatic PC scanner
- ❌ Not a substitute for professional IT support
- ❌ No Microsoft page
- ❌ No download portal
- ❌ No guarantee of solutions
Transparency instead of promises of repairs
This is how this help should be classified
Editorial status: October 29, 2026. fixdeinenpc.de offers an initial orientation for Windows users. An error code can have several causes. The collection does not replace an examination of the device, manufacturer support or professional data recovery.
Note Windows version: The instructions refer to Windows 11 and partly Windows 10; Menu names may vary depending on the version. In Windows 11, a troubleshooter can open the Get Help app. Regular Windows 10 support ended on October 14, 2025. If you continue to use it, check your actual ESU status and current conditions with Microsoft; ESU is not full technical support.
Microsoft: Update troubleshooting · Microsoft: current Windows 10 ESU conditions
Found an error? Report unclear or outdated instructions. Include the error code, your Windows version, and the affected step. Do not send passwords, serial numbers or confidential screenshots.
Remote help wisely: Only allow remote access after an agreement initiated and confirmed by you. Do not install software at the request of unknown callers. Stay in control of the session; Banking transactions and password changes do not belong in an externally controlled session.
Classification & official help
Not every error is a PC defect
Browser messages and HTTP codes can come from a website; Resetting Windows doesn't help. The same Windows code can have different causes in different programs. This collection supports the initial isolation, but does not guarantee a repair or automatically scan your PC.
For further reading: Microsoft: Upgrade error codes · Microsoft: Error in Device Manager · Microsoft: Windows Command Reference. External links require internet; the respective data protection information applies there.
When to stop? If you notice unusual drive noises, data loss, repeated crashes, a burning smell or a locked work computer, stop making changes without a diagnosis. Read the emergency guidance and seek qualified support.